<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表格</title>
    <style>
        table {
            width: 600px;
            height: 100px;
        }
        
        table,
        tr td {
            border-color: yellow;
            border-style: solid;
            border-width: 1px;
            /* 合并边框 */
            border-collapse: collapse;
            text-align: center;
        }
    </style>
</head>

<body>

    <table align="center" cellspacing="0">

        <tr>
            <th>来了</th>
            <th>来了</th>
            <th>来了</th>
            <th>来了</th>
            <th>来了</th>
        </tr>
        <tr>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
        </tr>
        <tr>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
        </tr>
        <tr>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
        </tr>
        <tr>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
            <td>来来来</td>
        </tr>

    </table>

</body>

</html>